Window-washing device



J. M. FRANZ WINDOW WASHING DEVICE Sept. 31924.,

Filed June '7, 1922 ATTORNEY Patented Sept. 2, 1924.

UNITED STATES JOHN FRANZ, 0F SAG-INA'W, MICHIGAN.

WINDOW-WASHDI G DEVICE.

Application filed June 7, 1922. Serial No. 566,525.

To all whom it may concern:

Be it known that I, JOHN M. FRANZ, a

citizen of the United States, residing at Saginaw, in the county ofSaginaw and State of Michigan, have invented certain new and usefulImprovements in Window- Washing Devices; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention. relates to window clean- I ers and the like andpertainsmore particubrush to be removed and a sand larly to windowcleaners having means for supplying water to the cleaning surface, forrevolving the cleaning element and for preventing spattering.

The objects of my invention are to produce a, simple and compactcleaning machine that is strong in construction, of attractiveappearance and adapted tobe produced in quantities atrelatively smallcost. A further object is to enable the cleaning aperi orv buffing diskto be quickly suhstitut therefor.

With these and certain other objects in view which will appear later inthe specification, my invention consists in the devices described andclaimed and the equivalents thereof.

In the drawings, Fig. 1 is a longitutinal section, broken away in part,showing my invention.

Fig. 2 is an enlarged plan view of the back of the revolving brush.

Fi 3 is a sectional detail of the brush spin le bearing. diig. 4 is a.sectional detail of the polishing As is clearly shown in the drawings,the device consists in the casing 1 containing a motor 2 and formed witha tubular handle 3. Upon the casing is secured a ear housing 4 formedwith a boss 5 whic receives a tube 6, upon the outer end of which issecured a length. of flexible tubing 6, carrying a cleaning elementcomprising a tubular base 7 secured to the outer end of flexible andalso a flanged plate 9.

tube 6 and carrying a bearin member 8 edge.

0 the outer Within the housing 10 is an annular brush 12 revolublymounted by means of a spindle 13 which projects through the bearing '8.

A flexible shaft 14 is secured at one end to spindle 13 and at its otherend to a drive shaft 15 mounted, by means of suitable bearings l6 and17, within the tube 6 and boss 5 respectively. lhe drive shaft 15 isactuated by the train of reducing gears 18 enclosed within the gearhousing 4, the

train of gears being driven by the motor 2,

as indicated in Fig. 1.

A suitable switch 19 conveniently located on the tubular handle 3 isemployed for starting and stopping the motor and for regulating itsspeed. When the motor is rotating the drive shaft 15, the flexible shaft14 and the brush 12, water m'ay be su plied to the inner periphery ofthe annnlar brush by means of pipe 20, one end of which may be formed offlexible tubing extending through the bearing 8 and adapted to dischar ewater into the space within the annular rush. The tube 20 is preferablymounted in bearing 16 and at a point near the gear housing 4 the tubeprojects out through tube 6, forming an attachment for a hose orothersource of water supply.

While the water is being supplied to the interior of the revolving brushit is prevented from spattering by means of the flexible telescopichousing 10 ha a rubber wiper 11 upon its rim.

Housing 10 is preferably :m of spring metal and is formed by windingastrip of metal in the form of a telescoping spring, as indicated inFig. 1, thus permitting the working edge of the wiper 11 to bear evenlyagainst the window surface while permitting the handle 3 to bemanipulated in various directions. i

For convenience in quantity manufacture and for quickness of assembling,ll prefer to 'make the bearing 8 in the form of a metal disk removablyreceived in the outer end of the tubular base 7 and secured by screws,as shown in Fig. 1. The plate 9 is preferably formed with an annularthreaded flange 9 ada ted to be screwed into the outer threade endofbase 7 so the threads will be protected from damage. The bearing 8 isformed with an aperture through which the end of water pipe 20 asses.

Spindle 13 is preferably forme with an integral collar 13 and the baseof the brush 12 is secured to the spindle by means of a suitable pinnedbushing 13 screwed into the boss of the brush 12.

By the means above described I have pro- .duced a simple, inexpensive,yet efiective window washing device that can be .used on windows orother surfaces without liability of injuring them and that is capable ofbein rapidly and economically manufacture A polishing disk 21 or itsequivalent. may be quickly substituted for the brush 12 if desired, byfirst removing the brush from spindle 13, then removing flange 9 withits housin 10 and wiper 11, and then screwing the isk 21 in place on thebushing 13.

Having thus described my invention,

what I claim and desire to secure by Letters Patent is:

1. In a window cleaner, the combination of a casing, a motor within saidcasing, a housing on one end of said casing and having a boss formedwith a shaft bearing, an inflexible tube secured ,to the boss of saidhousing, a short flexible tubular member carried by the outer end ofsaid inflexible tube and forming an extension thereof, a

and rotatable within said flexible tubular member, a spindle on the endof said flexible shaft, a flat-faced cleaning member removably securedto said spindle whereby said cleaning member is rotated and a tubularhandle secured to said casing for directing the cleaner over the window.

2. A window cleaner comprising a han dle, a motor within said handle, aninflexible tube on said housing, a revolvable shaft within said tube andoperatively connected to said motor, a short flexible tubular extensionon said inflexible tube, a flexible shaft rotatable Within said flexibleextension and connected to said revolvable shaft, a housing on the end.of said tubular extension and a cleaniu element within said housing andoperative y secured to the end of said flexible shaft.

In testimony whereof, I aiiix my signature,

JOHN M. FRANZ.

